CVE-2026-21371

🗓️ 06 Apr 2026 15:33:47Reported by qualcommType

CVE-2026-21371: buffer overread in WinBlast driver from output buffer size validation failure.

Reporter	Title	Published	Views	Family All 8
Circl	CVE-2026-21371	6 Apr 202617:00	–	circl
CNNVD	Qualcomm Chipsets 安全漏洞	6 Apr 202600:00	–	cnnvd
Cvelist	CVE-2026-21371 Buffer Over-read in WinBlast Driver	6 Apr 202615:33	–	cvelist
EUVD	EUVD-2026-19321	6 Apr 202618:33	–	euvd
NVD	CVE-2026-21371	6 Apr 202616:16	–	nvd
Positive Technologies	PT-2026-30641	6 Apr 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-21371	7 Apr 202617:03	–	redhatcve
Vulnrichment	CVE-2026-21371 Buffer Over-read in WinBlast Driver	6 Apr 202615:33	–	vulnrichment

NVD

Node

qualcomm aqt1000_firmwareMatch-

AND

qualcomm aqt1000Match-

Node

qualcomm cologne_firmwareMatch-

AND

qualcomm cologneMatch-

Node

qualcomm fastconnect_6200_firmwareMatch-

AND

qualcomm fastconnect_6200Match-

Node

qualcomm fastconnect_6700_firmwareMatch-

AND

qualcomm fastconnect_6700Match-

Node

qualcomm fastconnect_6800_firmwareMatch-

AND

qualcomm fastconnect_6800Match-

Node

qualcomm fastconnect_6900_firmwareMatch-

AND

qualcomm fastconnect_6900Match-

Node

qualcomm fastconnect_7800_firmwareMatch-

AND

qualcomm fastconnect_7800Match-

Node

qualcomm qca0000_firmwareMatch-

AND

qualcomm qca0000Match-

Node

qualcomm qca6391_firmwareMatch-

AND

qualcomm qca6391Match-

Node

qualcomm qca6420_firmwareMatch-

AND

qualcomm qca6420Match-

Node

qualcomm qca6430_firmwareMatch-

AND

qualcomm qca6430Match-

Node

qualcomm qcm5430_firmwareMatch-

AND

qualcomm qcm5430Match-

Node

qualcomm qcm6490_firmwareMatch-

AND

qualcomm qcm6490Match-

Node

qualcomm video_collaboration_vc3_platform_firmwareMatch-

AND

qualcomm video_collaboration_vc3_platformMatch-

Node

qualcomm sc8380xp_firmwareMatch-

AND

qualcomm sc8380xpMatch-

Node

qualcomm sm6250_firmwareMatch-

AND

qualcomm sm6250Match-

Node

qualcomm snapdragon_460_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_460_mobile_platformMatch-

Node

qualcomm snapdragon_662_mobile_platform_firmwareMatch-

AND

qualcomm snapdragon_662_mobile_platformMatch-

Node

qualcomm snapdragon_7c_compute_platform_firmwareMatch-

AND

qualcomm snapdragon_7c_compute_platformMatch-

Node

qualcomm snapdragon_7c_gen_2_compute_platform_firmwareMatch-

AND

qualcomm snapdragon_7c_gen_2_compute_platformMatch-

Node

qualcomm snapdragon_7c+_gen_3_compute_firmwareMatch-

AND

qualcomm snapdragon_7c+_gen_3_computeMatch-

Node

qualcomm snapdragon_8c_compute_platform_firmwareMatch-

AND

qualcomm snapdragon_8c_compute_platformMatch-

Node

qualcomm snapdragon_8c_compute_platform_(sc8180xp-ad)_firmwareMatch-

AND

qualcomm snapdragon_8c_compute_platform_(sc8180xp-ad)Match-

Node

qualcomm snapdragon_8cx_compute_platform_firmwareMatch-

AND

qualcomm snapdragon_8cx_compute_platformMatch-

Node

qualcomm snapdragon_8cx_compute_platform_"poipu_pro"_firmwareMatch-

AND

qualcomm snapdragon_8cx_compute_platform_"poipu_pro"Match-

Node

qualcomm snapdragon_8cx_gen_2_5g_compute_platform_firmwareMatch-

AND

qualcomm snapdragon_8cx_gen_2_5g_compute_platformMatch-

Node

qualcomm snapdragon_8cx_gen_2_5g_compute_platform_"poipu_pro"_firmwareMatch-

AND

qualcomm snapdragon_8cx_gen_2_5g_compute_platform_"poipu_pro"Match-

Node

qualcomm snapdragon_8cx_gen_3_compute_platform_firmwareMatch-

AND

qualcomm snapdragon_8cx_gen_3_compute_platformMatch-

Node

qualcomm wcd9340_firmwareMatch-

AND

qualcomm wcd9340Match-

Node

qualcomm wcd9341_firmwareMatch-

AND

qualcomm wcd9341Match-

Node

qualcomm wcd9370_firmwareMatch-

AND

qualcomm wcd9370Match-

Node

qualcomm wcd9375_firmwareMatch-

AND

qualcomm wcd9375Match-

Node

qualcomm wcd9378c_firmwareMatch-

AND

qualcomm wcd9378cMatch-

Node

qualcomm wcd9380_firmwareMatch-

AND

qualcomm wcd9380Match-

Node

qualcomm wcd9385_firmwareMatch-

AND

qualcomm wcd9385Match-

Node

qualcomm wcn3950_firmwareMatch-

AND

qualcomm wcn3950Match-

Node

qualcomm wcn3988_firmwareMatch-

AND

qualcomm wcn3988Match-

Node

qualcomm wsa8810_firmwareMatch-

AND

qualcomm wsa8810Match-

Node

qualcomm wsa8815_firmwareMatch-

AND

qualcomm wsa8815Match-

Node

qualcomm wsa8830_firmwareMatch-

AND

qualcomm wsa8830Match-

Node

qualcomm wsa8835_firmwareMatch-

AND

qualcomm wsa8835Match-

Node

qualcomm wsa8840_firmwareMatch-

AND

qualcomm wsa8840Match-

Node

qualcomm wsa8845_firmwareMatch-

AND

qualcomm wsa8845Match-

Node

qualcomm wsa8845h_firmwareMatch-

AND

qualcomm wsa8845hMatch-

Node

qualcomm x2000077_firmwareMatch-

AND

qualcomm x2000077Match-

Node

qualcomm x2000086_firmwareMatch-

AND

qualcomm x2000086Match-

Node

qualcomm x2000090_firmwareMatch-

AND

qualcomm x2000090Match-

Node

qualcomm x2000092_firmwareMatch-

AND

qualcomm x2000092Match-

Node

qualcomm x2000094_firmwareMatch-

AND

qualcomm x2000094Match-

Node

qualcomm xg101002_firmwareMatch-

AND

qualcomm xg101002Match-

Node

qualcomm xg101032_firmwareMatch-

AND

qualcomm xg101032Match-

Node

qualcomm xg101039_firmwareMatch-

AND

qualcomm xg101039Match-

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Snapdragon Compute",
      "Snapdragon Industrial IOT",
      "Snapdragon Mobile"
    ],
    "product": "Snapdragon",
    "vendor": "Qualcomm, Inc.",
    "versions": [
      {
        "status": "affected",
        "version": "AQT1000"
      },
      {
        "status": "affected",
        "version": "Cologne"
      },
      {
        "status": "affected",
        "version": "FastConnect 6200"
      },
      {
        "status": "affected",
        "version": "FastConnect 6700"
      },
      {
        "status": "affected",
        "version": "FastConnect 6800"
      },
      {
        "status": "affected",
        "version": "FastConnect 6900"
      },
      {
        "status": "affected",
        "version": "FastConnect 7800"
      },
      {
        "status": "affected",
        "version": "QCA0000"
      },
      {
        "status": "affected",
        "version": "QCA6391"
      },
      {
        "status": "affected",
        "version": "QCA6420"
      },
      {
        "status": "affected",
        "version": "QCA6430"
      },
      {
        "status": "affected",
        "version": "QCM5430"
      },
      {
        "status": "affected",
        "version": "QCM6490"
      },
      {
        "status": "affected",
        "version": "Qualcomm Video Collaboration VC3 Platform"
      },
      {
        "status": "affected",
        "version": "SC8380XP"
      },
      {
        "status": "affected",
        "version": "SM6250"
      },
      {
        "status": "affected",
        "version": "Snapdragon 460 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 662 Mobile Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 7c Compute Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 7c Gen 2 Compute Platform \"Rennell Pro\""
      },
      {
        "status": "affected",
        "version": "Snapdragon 7c+ Gen 3 Compute"
      },
      {
        "status": "affected",
        "version": "Snapdragon 8c Compute Platform \"Poipu Lite\""
      },
      {
        "status": "affected",
        "version": "Snapdragon 8c Compute Platform (SC8180XP-AD) \"Poipu Lite\""
      },
      {
        "status": "affected",
        "version": "Snapdragon 8cx Compute Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 8cx Compute Platform \"Poipu Pro\""
      },
      {
        "status": "affected",
        "version": "Snapdragon 8cx Gen 2 5G Compute Platform"
      },
      {
        "status": "affected",
        "version": "Snapdragon 8cx Gen 2 5G Compute Platform \"Poipu Pro\""
      },
      {
        "status": "affected",
        "version": "Snapdragon 8cx Gen 3 Compute Platform"
      },
      {
        "status": "affected",
        "version": "WCD9340"
      },
      {
        "status": "affected",
        "version": "WCD9341"
      },
      {
        "status": "affected",
        "version": "WCD9370"
      },
      {
        "status": "affected",
        "version": "WCD9375"
      },
      {
        "status": "affected",
        "version": "WCD9378C"
      },
      {
        "status": "affected",
        "version": "WCD9380"
      },
      {
        "status": "affected",
        "version": "WCD9385"
      },
      {
        "status": "affected",
        "version": "WCN3950"
      },
      {
        "status": "affected",
        "version": "WCN3988"
      },
      {
        "status": "affected",
        "version": "WSA8810"
      },
      {
        "status": "affected",
        "version": "WSA8815"
      },
      {
        "status": "affected",
        "version": "WSA8830"
      },
      {
        "status": "affected",
        "version": "WSA8835"
      },
      {
        "status": "affected",
        "version": "WSA8840"
      },
      {
        "status": "affected",
        "version": "WSA8845"
      },
      {
        "status": "affected",
        "version": "WSA8845H"
      },
      {
        "status": "affected",
        "version": "X2000077"
      },
      {
        "status": "affected",
        "version": "X2000086"
      },
      {
        "status": "affected",
        "version": "X2000090"
      },
      {
        "status": "affected",
        "version": "X2000092"
      },
      {
        "status": "affected",
        "version": "X2000094"
      },
      {
        "status": "affected",
        "version": "XG101002"
      },
      {
        "status": "affected",
        "version": "XG101032"
      },
      {
        "status": "affected",
        "version": "XG101039"
      }
    ]
  }
]

Source	Link
docs	www.docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html

08 Apr 2026 21:06Current

6Medium risk

Vulners AI Score6

CVSS 3.17.8

EPSS0.00006

SSVC

CWE-126